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The initial exposure of an individual to an antigen is referred to as what?
Herman Melville
An American novelist, short story writer, and poet of the 19th century, best known for his novel "Moby-Dick."
Mid-Nineteenth-Century America
A period in American history characterized by significant expansion, social change, and the prelude to the Civil War, roughly spanning the 1830s through the 1850s.
Black Characters
Refer to individuals of African descent portrayed in literature, film, television, and other forms of media, often focusing on their experiences, identities, and narratives.
Second Bank Of The United States
A federal institution that operated from 1816 to 1836, functioning as the United States' central bank, located in Philadelphia, Pennsylvania.
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